Medics cut the umbilical cord inside the emergency vehicle, and mother and child were taken to Temple University Hospital.

Rocher said the baby girl and her parents were fine.

At the hospital, the father sat rocking in a chair and thanked Rocher repeatedly.

But Rocher humbly brushed off the gratitude and said, "She did all the work. To hear the baby cry was the most rewarding thing."

As of yesterday, he said the parents, who were not identified, had not selected a name for their new arrival. Rocher, a father of three grown sons, said he hadn't even changed a diaper in 17 years, but that this experience was life-changing.

"This will be a Christmas I'll remember for the rest of my life," he said.